Coal cutting and similar machine



COAL' CUTTING AND SIMILAR rym'fim 'Fild May e. 4192? 2 snags-sheet 1 u swg, WL

Invnml tar .dttomeu/ Patented May 22, i923.,

UNET@ enterar ossea.

MATTHEW SMITH T/IOORE. OF LONDON, ENGLAND, ASSIGNOB. TO COVJLSHAW WALKER & COMPANY (1920) LIMTED, F LONDON, ENGLAND.

COAL CIUTTENG AND SMILAR MACH'INE.

Application led May 6,

To @ZZ whom it muy concern.:

Be it lrnoivn that I, lvlA'r'rHnw SMITH Moonn, a subject ot the King of Great Britain and Ireland, residing at lll/16 Cockspur Street, London, S FV. l, England, have invent-ed certain new and useful Improvements Relating to Coal Cutting and Similar Machines, ot which the following is a speciication.

This invention relates to coal cutting and similar machines of the kind in which the body of the machine is mounted upon supports capable ot adjustment for the purpose of tilting the body of the machine to any i convenient desired degree laterally or longitudinally or both laterally, in either direction, and longitudinally.

Such machines have before been proposed in which the body of the machine is supported 20 at the cutter end on tivo adjustable supports disposed laterally With reference to the longitudinal axis ot' the body of the machine, and at the haulage end by a single and centrally disposed support. I

Now the 'present invention has among its objects so to provide the supports that their adjustment for tilting the body ofthe machine laterally or longitudinally may be effected at the haulage end ot the machine.

` The invention is illustrated in the accompanying drawings in which Figure l is a diagrammatic plan of a coal cutting machine illustrating the present in vention.

Figure 2 is a diagrammatic view of one of the adjustable lateral supports mounted at the haulage end ot' the machine.

yFigure Sis a similar diagrammatic ,view of one ot' the lateral supports shown in the in- 40 clined position corresponding to the position assumed by the body of the machine after an adjustment has been rmade and illustrating the manner in Which the rigidity of the ma.-

vchine body is ensured.

Figure t shows a detail sectional elevation of coal cutting machine, the section being taken on the line 2 2 of Fig. 5, and Y Figure 5 is a detail plan corresponding to Figure 4. y y

Thus according to the invention the machine bodya is mounted upon two laterally disposed and adjustable supports?) yat the haulage end of the machine, and is provided with a reduced portion ai 'disposed Within a5 a. centrally disposed lsupport c at the cutter erally disposed stationary brackets e e Which may be secured to the usual longitudinal frame supporting members m, so that thus While the body c of the machine is capable of rotation to the eXtent desired in one or other direction on its longitudinal axis .Qs-, it is capable of being tilted on the transverse aXis @/-g/ of the trunnions d d as required according to the adjustments made of the supports b at the haulage end of the machine.

The invention has also among its objects to provide simple means to ensure the rigidity of the machine body c, and its freedom from any disposition to sway on any variation in the adjustment of the laterally disposed supports o at the haulage end of the machine, which results in a variation in the inclination or position of the respective supports. For this purpose according to the invention the lateral supports Z) at the haulage end of the machine are each provided of tivo parts 1 b2, one b2 being a central part screw threaded upon its exterior, and the other l being oi a corresponding tubular form screw threaded upon its interior, the central part Z22 being thus adapted to be screwed Within the tubular part 1 so that the effective length of the support o thus constituted is capable of variation on the rotationof one part With reference to the other. F "or this purpose one of the parts of the support, conveniently the tubular part b1, has mounted upon it, or integrally formed With it, in a convenient position in its length, a Worm wheel f Which is adapted to engage with a Worm g Whose aXis is disposed at ain angle to thatof the Worm Wheel f, so that thus the spindle t upon Which the Worm g is mounted may be directed outwardly to the respective sides of the machine as indicated in Figure 4, in a position convenient for rotation by the machine operator at the haulage end, by 'means of hand levers 01- Wheels,

Accordingftotheinvention, with a view to ensure the rigidity of the position of the inachine body in any position in which it may betilted upon its longitudinal axis, I mount the one partvof one of the lateral supports at the haulage end, conveniently the tubular part b1, within. a guide or guiding boss z' mounted upon the machine body c. The slot or hole within the guide or guiding bossa' is so provided as to permit any desired degree of tilting of the vmachine body .about the transverse axis y-,g/ oit the trunnions CZ CZ at the cutter end ot the machine,but for any lateral. tilting ot the machine body about the .longitudinal axis the guide or guiding boss i affords a positive but a sliding connection between the support Z2 and the machine body c, so that thus, whileeach of the lateral supports Z) at the haulage end of the machine is independently adjustable, the haulage end of the machine is rigidly supported as usual on the longitudinal Jframe supporting members m.notwithstanding inequality in the adjusted height ofthe supports. f

It followsthat inasmuch as the respective lateral supports?) at the haulage end of the f machine are` adapted for the variation of their height or length and position in the manner described, their. respective ends are so formed and mounted as to permit of this. lThus the respective ends ot" the adjustable lateral supports o at the. haulage end of .the machine are provided with spherical heads 7c Z and `they are engaged within, oppositely disposed bearings provided with caps 711 Z1 adapted positively to retain thel spherical ends within the bearings, while permitting of variation .of position of the support. It will be understood that the bearings `for the upper spherical heads are provided in the body a of the machine while the bearings for the lo-wer spherical hea-ds Z are provided within baseY blocksZ2 secured upon the longitudinal frame supporting members m, the base blocks pro- ,truding through holes or apertures n providedin the lower or base part ot ythe machine body. l

In ,the construction illustrated in Figure 4 yit will be understood that the upper end of l the head Z.

the outer part @1.0i Ithesupport is adapted for the reception of a stem k2 integrally proyidedwith the. head 7c and that the stein 722 `is `firmly fixed lwit-hin the part b1 oi" the support, and that similarly! the central part Z22 of the. support is integrally provided with Means may be provided as illustrated in'Figure l for the lubrication ot the screw threads. Such means may consist of 'K an axial hole b3 extending through the head Zc and vstein 702; Y Holes in corresponding position are provided in the machine body which a're, capable of being. closed by means of a plug such as a2.

the upper end thereof, so that thus the tubular support is adapted to slide within the guide or guiding boss i'. on the machine body. It will be understood that the invention comprises the constructional Jfeatures which are herein specifically described.

The manner of mounting the machine body a at the cutter end of the machine may@ vary considerably', but 'the position of this support is so disposed that the necessary extent of vertical adjustment at the cutter end of the machine may be effected in the manner described by the adjustment of the lat-;VK

eral supports Z9 at the haulage end of then machine, and by the body of the machine being` tilted upon the transverseaxis jl/-y This is conveniently effected in the manner hereinbefore specific-ally described` by car-.

rying the machine bodyl a near the cutter end within the ring c concentric with the longitudinal axis m-ai of `the machine in such manner as to permit partial rotation .of

the machinebody a within the ringo, and l by providing this ring with vtrunnionsl Z d .in opposite positions, so that `the ring may thus be carried in `bearings at eachy side through which the trunnions .pass. The

trunnionsI may be mounted advantageously.. beneath the longitudinal axis -mofthe machine body, or even above l.the longitudinal axis, or yet again the body oli-.themachine may be mounted near the cutterend in any other manner than herein specifically indicated, whereby. the .body Aat the cutter end may be partially rotated or tiltedon its longitudinal axis and also wtilted on', the .axis of the trunnions, without however usingadjustable lateral supports at the cutter end of the machine. v j

It will, however, be understood that the invention is notlimitedl to the constructional features hereinbefore described. The adjustable lateral supports at the haulage end of the machine may for example be constructed so as to be adjustable in any other manner than described, and oneor other of ther adjustable lateral supports may be held in the manner described so that the body of the machine may be rigidly heldno matter what the extent of adjustment may be of .the respective lateral supports.

1. A coal cutting machine comprising a body, .a central support, adjustable supports at the haulage end of the machine comprising telescoping screw threaded members having sphericalV end members, a base for the permit partial rotation of the body both longitudinally and transversely of the central support, and means for extending and contracting` the telescopic members.

2. A. coal cutting machine comprising a body, a central support therefor, adjustable supports at the haulage end of the machine comprising telescopic threaded tubes, a Worin Wheel on the outer tube, a Worm engaging the worm Wheel "to impart rotary motion thereto and to the tubular member to extend or contract the saine, plugs carried in the end ot each tubular member and having spherical heads, sockets 'for the said heads permitting partial rotation of the body both longitudinally and transversely et the central support, and means for rotating the Worm.

3. A coal cutting machine comprising a body, a pivoted ring at the center of 'the machine having the body rotatably supported therein to permit 'the body to swing about its longitudinal and transverse axes.y adjustable supports at the haulage end of the machine comprising extensible telescoping members, and means Yfor extending or contracting the adjustable supports to impart said movement to the body.

4L. A coal cutting machine comprising a body, a pivoted ring at the center of the machine having the body rotatably supported therein for pivotal movement about its longitudinal and transverse axes, adjustable supports on each side of the machine at the haulage end comprising telescoping screw threaded, tubular members, plugs having spherical heads Within one end of each tube, bearings for the said heads to permit swinging movement ot the supports, a guiding boss secured to the body, and encirling the adjustable support to rigidly support the body in its adjusted position, means for adjustingthe supports to impart said movement to the body, and means for lubricating the same.

5. A coal cutting machine comprising a body, cuttingI means at one end and haulage means at the other end thereof,` skids beneath both sides of the body, a central ring having the body mounted therein for movement about its longitudinal axis, means at the haulage end ot the machine tor imparting the said movement to the body, the cutting means capable of being swung laterally in a. horizontal plane to extend over either of the skids. 

